\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Log Net Worth OLS Regression}
\begin{tabular}{l*{1}{c}}
\hline\hline
                &\multicolumn{1}{c}{(1)}         \\
\hline
Cognitive Ability&   0.2882\sym{**} \\
                & (0.1320)         \\
Non-cognitive Ability&   0.0786         \\
                & (0.1796)         \\
Years smoked as of t-1&  -0.0525\sym{**} \\
                & (0.0206)         \\
\hline
Observations    &      215         \\
\hline\hline
\multicolumn{2}{l}{\footnotesize Standard errors in parentheses}\\
\multicolumn{2}{l}{\footnotesize \sym{*} \(p<0.10\), \sym{**} \(p<0.05\), \sym{***} \(p<0.01\)}\\
\end{tabular}
\end{table}
